Checking, Adding, And Bleeding The Engine Coolant - Toro 22323 Operator's Manual

Checking, Adding, and
Bleeding the Engine Coolant
Service Interval: Before each use or daily
Clean debris off of the screen, oil cooler, and front of the
radiator daily and more often if conditions are extremely
dusty and dirty
The cooling system is filled with a 50/50 solution of water
and permanent ethylene glycol antifreeze. Check the level
of coolant in the expansion tank at the beginning of each
day before starting the engine.
DANGER
If the engine has been running, the pressurized, hot
coolant can escape and cause severe burns.
• Do not remove the radiator cap when the engine
is hot. Always allow the engine to cool at least
15 minutes or until the radiator cap is cool
enough to touch without burning your hand
before removing the radiator cap.
• Do not touch radiator and surrounding parts
that are hot.
• Use a rag when opening the radiator cap, and
open the cap slowly to allow steam to escape.
DANGER
Rotating shaft and fan can cause personal injury.
• Do not operate the machine without the covers
in place.
• Keep fingers, hands and clothing clear of
rotating fan and drive shaft.
• Shut off the egine and remove the ignition key
before performing maintenance.
1. Check the level of coolant in the expansion tank
(Figure 20).
The coolant level should be at or above the mark on
the side of the tank.
1. Expansion tank
2. Full mark
2. If the coolant level is low, complete the following
procedure:
A. Remove the coolant fill cap (Figure 21).
1. Expansion tank
2. Coolant fill cap and filler
neck
B. Open the front and top coolant bleed valves
(Figure 21).
C. Pour coolant into the coolant filler neck until the
coolant begins to come out of the front coolant
bleed valve (Figure 21).
D. Close the front coolant bleed valve (Figure 21).
E. Pour coolant into the coolant filler neck until the
coolant begins to come out of the top coolant
bleed valve (Figure 21).
20
Figure 20
Figure 21
3. Top coolant bleed valve
4. Front coolant bleed valve